Opt-out cookies!!!

Have you you guys tried these opt-out cookies Do these really work?

I know some web sites like http://www.networkadvertising.org/optout_nonppii.asp and http://www.doubleclick.com/us/about_doubleclick/privacy/ willl enable you to opt-out, but how do these opt-out cookies work

 

It looks like you have to accept a cookie to "opt out" of their marketing and data collection. There's nothing special about the cookie. It's how a site chooses to behave when it detects that cookie. You'll have to trust the member organizations that they'll respect your privacy.